M-PHASE 5000

Magnetic Resonance Flowmeter M-PHASE 5000

Magnetic resonance multiphase flowmeter for the simultaneous measurement of oil, gas and water

Single measurement principle, no radioactive source

Fully automated inline fluid characterisation

Large dynamic range up to 1:60, full bore design

Enhanced reservoir management

With the introduction of the M-PHASE 5000, KROHNE brings cutting-edge science to flowmeter design which delivers tangible economic advantage to our oil and gas customers.

Magnetic resonance makes use of a fundamental property of atoms and in effect makes it possible to “count” hydrogen atoms. Since oil, gas and water all contain hydrogen atoms, multiphase flow can be measured using magnetic resonance. For this purpose the fluids are magnetised and subsequently excited by radio frequency pulses. The hydrogen atoms respond to the pulses and send back echoes which are recorded. The amplitude of the echoes and the rate at which they decay is used to calculate the flow rates. The difference in magnetic resonance properties allows making a distinction between the flowrates of oil, gas and water.

This paper describes the principle of quantifying the gas fraction during multi-phase flow using the Magnetic Resonance (MR) based multiphase flow meter and provides experimental results obtained during the testing phase of the meter.